Belt-fastener.



J. C. CONN. v BELT PASTBNER.

` Arruoulou Hmm 001.3. 1910.

Patented Jam 30, 1912.@v

UNITED STATES-PATENT OFFICE.r

JOSEPH C. CONN, OE POONTON, NEW JERSEY, ASSIGNOP. To J. E'STONE Co., OE GRAND RAPIDS, MICHIGAN, A CORPORATION OE MICHIGAN.

BELT-FASTENER.

Application med october a, 191ey serial No. 585,047.

ITo all whom it may concern:

Be it known that I, JOSEPH C. CONN, a citizen of the United States, residing in Boonton, in the county of Morris and State of'N ew Jersey, have inventeda certain new and useful Improvement in Belt-Fasteners, of which the following is a specification.

The invention relates to'means for joining the ends of power belts, ticularly to that class of wire fasteners having divergent arms equipped with spurs, known as belt-hooks. Fasteners of this type are made singly, entailing considerable labor in arranging, spacing and fastening upon the belt-end.

The main object of the present invention is to avoid this objectionable feature yby providing a continuous length or series of connected fasteners, 'properly arranged and spaced for attachment to the belt.

Another important object is to provide a fastener adapted to be thus formed, constructed to engage strongly in the material of the belt and resist the severe tensile strains to which it is subjected in service.

A further object of the invention is to provide an arrangement by which the series may be easily severed to permit the removal of a portion or section, without waste, and

when thus dividedv the severed end of each* part will be left in condition' to engage in the belt, and, as a general object, to pro- Yvide a beltfastening'means of this character, formed by bending and shaping a continuous wire into a connected series. of spurred arms, which may be economically manufactured and conveniently applied.

The invention consists incertain novel features of construction and arrangement of parts by which the above objects lare attained, to be hereinafter described.

The accompanying drawings form a part` of this specification and show an approved form of the invention.

Figure 1 is a face view of a section of connected fasteners. Fig. Qis a top or plan view of the same. corresponding to Fig. l.' Fig. 4L isa transverse' section on the lineit in Fig. l. Fig. 5 is a plan view-showing the section of fasteners applied on a belt-end. Fig. i6 is a, 'corresponding section on a line parallel with the arms of the spurs. Fig. 7 is a section on the line 7 4-7 in the preceding figure,

Specification of Letters Patent.

and more par- Fig. Slis: an lend view Patented J an. 30, 19,12.

seen in the direction indicated by the arrows. Fig. 8 `is a section through one of the spurs on a larger scale. Fig. 9 is a face view of suchspur. Fig. 10 is a similar indicated by dotted lines.

taken on the Similar letters of reference indicate the same parts in all the figures.

The series of fasteners may be in any' i length and comprises a succession'of parallel loops or convol'utions formed by bending a continuous wire, each joined to the neXt by a spur' formed by shaping the bight of' the loop. The series of convolutions is bent or partially folded upon itself to pro duce two series of pairs of divergent arms extending angularly from the bend 0r partial fold A; for'convenience of descrip-tion One series A1 will be termed the upper arms and the other A2, the lower arms but both series are or may be alike and either may apply to the upper lor lower face of the y belt-end M.

The spurs vA3 formed by flattening and pointing the upper loops' are bent downwardly and slightly inwardly and form the connection between thevpairs of parallel upper arms A1. The spurs A4 similarly join the pairs of lower arms A2 and are bent upwardly and inwardly, and as the convolutions are continuous and parallel the upper and lower spurs alternate or lie each in Figs. 4l and 2; thus each spurengages in the belt-end between two onthe other `face of the belt, and the liability to tear the latter under the strain of power translbetween two of the opposite row, as shown j' mission is lessened. To further diminish ythis dangerthe spurs A3 `are staggered or stepped relativelyv to 'eachother by varying the lengths of the pairs of arms A1, and the lower spurs A4 are similarly arranged.

Each row ofispurs is preferably of successive groups of three lengths each, long,

medium, and short andthe groups in one row overlap those in the other So that long in the lower row is located between fmedium' and short in the upper row,

i the material of c tachment of the spur Y the material the spur.

and short in the lower row liesbetween long and medium in the upper row, while medium of the lower row fallsbetween long and short of two kadjacent groups in the upper row. Thus staggered and arranged each spur is driven into the belt at considerable distance from the next in the same or the opposite row and a continuous weakened line of engagement is avoided.

It will ,be noted thatl the tensile strain on each spur is borne by two parallel arms which when partially embedded in the belt, as in Figs. 6 and 7, produce a tongue or ridge between each pair serving to aid in resisting the disengagement of the spur due to lifting and torsional strains. The twin arm arrangement also facilitates the atto the belt lby oering two slightly separated driving surfaces and insures a straight entrance under pressure or blows upon both arms.

In dividing the series into lengths as may be required for belts of diiferent widths the line of division is preferably through In the arrangement shown, each spur is indented or scored as at a a, see Fig. 9, to offer breaking lines which with the outline of the lower end of the spur form a lozenge or diamond. After separation this diamond-shaped piece remains attached to one arm from which it may be removed, as in Fig. 10, to leave each adjacent arm equipped with a short engaging point or spur adapted to be driven into the belt with the others so that all arms are engaged and no portion of the series is wasted in the division. y

Figs. 11 and 12 show an implement used in attaching belt-hooks of this type to the belt-ends. It. comprises a bed B. having grooves b 'inwhich the lower arms A2 are received with the bends A resting against an eccentrically mountedrod C extending transversely through the lands between the grooves. A pin D is then thrust through the lands, engaging the bends A, and the rod C turned to force the bends against the pin and hold the section in place. A beltend is then inserted between the rows of spurs which are then beaten or forced into ofthe belt and driven home as usual.

An importantV advantage due to thev connected construction is the elasticity of the series or its capability of expansion or contraction which greatly facilitates placing the arms in the grooves of a tool of this character. Another feature of advantage in' the continuous structure is its iexibility, permitting a long length to be coiled or wound upon itself in a, helix of small diame- Modifications may be made in theforms and proportions of the parts without de-r parting from the invention as claimed. The form of the spurs may be varied from that shown and described, and the weakened line for facilitating separation may be diiierently located.

The improved fastener is designed to be formed by suitable wire-working machinery and may be thus manufactured economically and with the necessary uniformity.

I claim l. A plurality of belt-hooks of the character set forth formed in connected series from a continuous length of wire having portionsto embrace both sides of a belt end, said hooks having arms, the adjacent arms being of different lengths with spurs joining adjacent arms, the outermost spurs constructed to be easily severable.

2. A plurality of belt-hooks comprising connected pairs of upper and lower arms formed from a continuous length of wire having portions to embrace both sides of a belt-end, and a spur formed integral with and joining each arm to the adjacent arm of its pair.

3. A plurality of belt-hooks comprising a connected series ofpairs of upper and lower arms formed from a continuous length of wire, and a spur formed integral with and joining each arm to the adjacent arm of its pair, said spurs constructed to be easily severed in dividing the series.

4. A plurality of belt-hooks comprising a i connected series of pairs of upper and lower arms formed from a continuous length of wire, a spur formed integral with and joining each arm to the adjacent arm of its pair, and each having a weakened line along which said spur is severablein dividing the series.

5. A plurality of belt-hooks comprising a connected series kof pairs of upper and lower arms formed from a continuous length of wire, a spur formed integral with and joining each arm to the adjacent arm of its pair, and each having a weakened line along which said spur is severable in dividing the series, said 'spur constructed when thus Adivided to form an engaging point on each end of said adjacent arms. i

6. A plurality of belt-hooks comprising a connected series 'of pairs of upper and lower arms formed from a continuous length of wire, a spur formed integral with and joining each arm to the. adjacent arm of its pair, the pairs of arms ofsaid upper and lower series connected by folds and constructed to extend inthe direction of the length of the belt and varying in length to present the spurs of each series in staggered relation to each other and to the spurs of the other series upon opposite sides of the belt-end.

7 A vplurality of belt-hooks comprising a connected. series of divergent pairs of upper and lower arms formed from a continuous llO length of wire, said pairs of upper and arms of adjacent pairs being united at their 10 lower arms constructed to receive therebeends opposite said adjacent pairs by a spur. tween the end of a belt the arms of each of i In testimony that I, claim the invention said pairs parallel with the other arms of above set forth I aiX my signature, in presthe same series, and a spur formed integral ence of two Witnesses.

with and severably joining each arm to the JOSEPH C. CONN.

adjacent arm of its pair. Witnesses:

8. A belt hook having armsl in pairs With CHARLES R. SEARLE,

integral bent joining portions, the adjacent WALLY E. YOUNG.

Copies of this patent may be obtained for ve cents each, by' addressing the Commissioner of Patent Washington, D. C. 

